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S40975 Stainless Steel vs. N08700 Stainless Steel

Both S40975 stainless steel and N08700 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 60% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is S40975 stainless steel and the bottom bar is N08700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
32
Fatigue Strength, MPa 210
210
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 81
81
Shear Modulus, GPa 75
79
Shear Strength, MPa 290
410
Tensile Strength: Ultimate (UTS), MPa 460
620
Tensile Strength: Yield (Proof), MPa 310
270

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 450
460
Maximum Temperature: Mechanical, °C 710
1100
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 26
13
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
32
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.0
6.0
Embodied Energy, MJ/kg 28
82
Embodied Water, L/kg 95
200

Common Calculations

PREN (Pitting Resistance) 11
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
160
Resilience: Unit (Modulus of Resilience), kJ/m3 250
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
21
Strength to Weight: Bending, points 17
20
Thermal Diffusivity, mm2/s 7.0
3.5
Thermal Shock Resistance, points 17
14

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.040
Chromium (Cr), % 10.5 to 11.7
19 to 23
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 84.4 to 89
42 to 52.7
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
4.3 to 5.0
Nickel (Ni), % 0.5 to 1.0
24 to 26
Niobium (Nb), % 0
0 to 0.4
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0 to 0.75
0